Packing-gasket.



J. W. MILLER.

PACKING GASKET. APPLICATION FILED MAR. 27 1908.

95g 1g8 Patented Mar. 15,1910.

' ring is less compressible than the JOHN W. MILLER, 01? HAIR RISBURG. PENNSYLVANIA.

PACKIN G-GASKET.

. Specification of Letters Patent.

Application filed March 27. 1908. Serial No. 423,652.

To all whom it may concern:

Be it known that I. Jorrx V. Mnmnn, a citizen of the United States, residing at l larrisburg, in the county of Dauphin, State of Pennsylvania, have invented certain new anduseful Improvements in Packing-Gaskets; and I do hereby declare the following to be a full, clear, and exaetdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relatesto packing gaskets and in carrying out my invention I have in view the provision of a gasket which may be compressed to a slight degree when placed in a union. 1

Broadly speaking, the gasket embodied in my invention comprises a con'ipressible body pprtion such as asbestos. and facing rings which are preferalily of sheet. copper. \Vhile gaskets of this general character have before been devisedrthe facing rings have been conneeted in such a inanneintliat the gasketis thicker at the point of connection of the rings than at any other point but this is undesirable inasmuch as such portion of the true body of the ring. I. have therefore aimed, in carrying out my invention, to so connect the facing rings that the gaskets will be thinner at their point of connection with each other than at any other point but permitting of the entire true body of the gasket being compressed to the proper degree.

in the accompanying drawings, Figure 1 is a plan view of one face of the gasket, Fi 2 is a similar View of the other face thereof, Fig. 3 is an edge view, and, Fig. 4; is a vertical transverse sectional View, the said view being in detail.

As shown inthe drawings the gasket is made up of a compressible odyportion 5 which is preferably of asbestos but which may be of any other suitable material which is compressible to a slight degree. The gasket also includes inits structure, facing rings, one of which is indicated bythe numeral 6 and the other by thenumeral 7.

The rings 6, and 7 are preferably stamped or otherwise formed from sheet copper al- -found expedient.

vgle )ly ot compressible form an offset flange,

material may be used if The facing ring is formed at its inner edge with an olfset flange including a portion 8 which extends at right angles to the body of the ring and a portion 9 which extends inwardly and the ring 6 has its inner edge portion bent or returned over the said portion 9 of the ring 7, the. body portion 3 of the gasket being of such dimensions that its outer edge registers with the outer edges of the two facing rings audits inner edge rests against the portion 8 of the oli'set, flange at the inner edge of the ring 7.

From the foregoing, it will be understood that the true body of the ring is of threepl'y structure including two plies though other sheet of non- 4 Patented Mar. 115', 191d.

compressil'lle or metallic material and a sin-' material. By rcturning the inner edge portion of the ring 6 over the portion 9 of the offset flange at the inner edge of the ring 7 and by stamping these two portions of the ring together, the gasket formed of less thickness at this point. than at any other point, and the body portions of the two rings are free to move toward each other when pressure is exerte against opposite sides of the rings which of course occurs when the ring is placed between the two members of the union or in any other similar pipe connection.

What is claimed, is:- I

1. A gasket comprising a compressible body portion, and metallic facing rings, said rings having their inner edges interlocked.

2. A gasket comprising a compressible body portion, and non-compressible facing rings, said rings having their inner edges interl ocked.

3. A gasket comprising a compressible body portion, and metallic facing rings, one of said rings having its inner edge bent to form an olfset flange and the inner edge of the other ring being bent around said flange.

- l. A gasket comprising a compressible' and metallic facing rings, one having its inner edge bent to the inner edge of the other ring being returned over said flange.

5. A gasket comprising a compressible body portion, and metallic facingmmgs, one

body portion,

of said rings of said rin having its inner ed' e bent to the gasket being of less thickness at its inner form an 0 set flange, the inner edge of the edge than at any other point. a m

y portion of the gasket resting against a In testimony whereof, I aflix my signature, portion of said flange, the inner edge of the in presence of two Witnesses.

5 other ring being returned over said flange. JOHN W. MILLER.

6. A gasket comprising a compressible Witnesses: body portion, and'metallic facing rin s, said J. T. MILLER,

rings having their inner edges inter ocked, S. H. Z1;MMERMAN. 

